Have you used state functions? Do you have experience with state functions?

Situation: In my previous role I was tasked with building a resilient order‑processing system for a retail client. Task: I needed to orchestrate multiple microservices—payment, inventory, shipping—while handling failures gracefully. Action: I designed a Step Functions state machine that started with a Task state invoking a Lambda to validate the order, followed by a Parallel state that ran inventory check and payment authorization concurrently. I used Choice states to route the flow based on payment success, and a Catch block to trigger a compensating transaction if any step failed. I also added a Wait state for retry logic and a final Pass state that logged completion. Result: The new workflow reduced order processing time by 30%, eliminated manual error handling code, and provided a clear visual representation that made onboarding new developers faster. This experience taught me how to leverage state functions for reliability, scalability, and maintainability.